Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24bcd06b0a11d6b…

MALICIOUS

PDF

36.3 KB Created: 2020-09-09 21:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dd3b596ec02fffaf2f54d0c7cd3e78f8 SHA-1: 6306334135bd55b5b26988580356951ea190beed SHA-256: f24bcd06b0a11d6b51fad900295ec6646468e842082c63c7a6439023d4fb816d
254 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to redirectors, with a primary focus on 'https://ttraff.club/wix?keyword=adoption+pay+form'. This redirector is flagged as malicious and is associated with SEO link farms, suggesting a phishing or malware distribution campaign. The document body also contains embedded URLs, further supporting the malicious intent. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.club/wix?keyword=adoption+pay+form In PDF document text
    • http://files.carriagehousepilatesandwellness.com/uploads/1/3/0/7/130740141/mobogadozonijavudinu.pdfIn PDF document text
    • http://files.buymostwantedbooks.com/uploads/1/3/1/4/131410167/loduje.pdfIn PDF document text
    • http://files.unfilteredperspectives.com/uploads/1/3/1/8/131856498/mijirakik-vebudojedo.pdfIn PDF document text
    • http://files.aerialmediavisions.com/uploads/1/3/1/3/131398605/wiwizorepimivami.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/3747/4198/files/65054182106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53635556436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2017/1936/files/goluvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/tivivirorodezijef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6418/5247/files/cours_de_chinois_gratuit.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0ff9511d5cd44828b7cc1a251935ddcf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e2f7e1_abaa73cf9c7f417bbfafd406b2d202ee.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b222ea_2fc0f2b72fad4136a1b11e9d6548a477.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/65b209_7a289791946247e3bd009ba0132cbe0c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/078c79_7dd2a021a8544e38a68e532a49d17879.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e73fea_e70cf752528244b9b3b63b93a0a46f14.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4dded2_68ca868bcb54431ab45a637b7c4d2a75.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51FC 5068 bytes
SHA-256: 11591447d54466fdd97537e91e580027b1b5e5b5b577718592070857d6d213c5
font_01_sfnt_off00006335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6335 9792 bytes
SHA-256: 09e56b35c53d9f0c5cda24034ca8ba5cc3683a5f96d74e1a8515aa5e210041f3